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The JAK-STAT Signaling Pathway01:20

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Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...
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Updated: Apr 10, 2026

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Cytokine multimerization: when more is more and sometimes less.

Ina Rudloff1,2, Michael Christie3,4, Nadia S Deen3,4,5

  • 1Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia. ina.rudloff@hudson.org.au.

Nature Reviews. Immunology
|April 8, 2026
PubMed
Summary
This summary is machine-generated.

Cytokine multimerization fine-tunes immune responses by altering activity and signaling. Understanding these structures offers new therapeutic avenues for diseases linked to cytokine dysregulation.

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Area of Science:

  • Immunology
  • Molecular Biology
  • Biochemistry

Background:

  • Cytokines are crucial immune mediators regulating diverse biological processes.
  • Dysregulated cytokine activity increases disease risk, necessitating tight control.
  • Cytokine multimerization (homodimers, heterodimers, multimers) is a key regulatory mechanism.

Purpose of the Study:

  • To explore the structure-function relationships of cytokine multimerization.
  • To analyze multimerization's impact across various cytokine families (Type I, Type II, IL-10, Interferon, IL-1, M-CSF, IL-17, TNF, TGFβ).
  • To highlight multimerization's role in disease and therapeutic potential.

Main Methods:

  • Review of structural and functional data on cytokine multimerization.
  • Analysis of implications for receptor engagement and signaling.
  • Discussion of disease relevance and therapeutic opportunities.

Main Results:

  • Cytokine multimerization diversifies signaling outcomes and can enable or attenuate activity.
  • Multimerization influences cytokine interaction with receptors.
  • Specific examples across major cytokine families illustrate these principles.

Conclusions:

  • Cytokine multimerization is a fundamental mechanism controlling immune function and biological processes.
  • Understanding multimerization dynamics is key to addressing diseases driven by cytokine dysregulation.
  • Targeting cytokine multimerization presents promising therapeutic strategies.